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H. E. PR'IDMORE.

\ GRAIN BINDER.

No..44z,544. Patented Dec. 9,-189o.

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No. 442,544. Patented Dec. 9, 1890.

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E. E. PRIDMORE. GRAIN BINDER.

No. 442,544. Patented Dec. 9, 1890.

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H. E. PRIDMORE.

GRA-IN BINDER.

No. 442,544. Patented Dec. 9, 1890.

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Unire STATES ATENT- HENRY E. PRIDMORE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE MCCORMICK IIARVESTING MACHINE COMPANY, OF SAME PLACE.

GRAlN-BlNDER.

SPECIFICATION forming part of Letters Patent No. 442,544, dated December 9, 1890.

Application tiled October 17, 1887. Serial No. 252,536. (No model.) Patented in England `l'uly 16. 1887, N0. 9.9921

To all whom, t may concer/t.-

Be it known that I, HENRY E. PRIDMORE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Grain-Binders, (for which Letters Patent of the Kingdom of Great Britain, No. 9,992, dated July 16, 1887, have been issued to \Villiam I). Thompson as a commu- Io nicat-ion from Cyrus II. McCormick, Jr.,) of

which the following is a specification.

This invention relates in' the main to that type of binders in which the tying-bill is stopped at the end of the knotting movement with its jaws trending outward in the direction of the extended cord-slot, so that the loop may be stripped therefrom and the ends wrenched from between the jaws by the di` rect strain of the sheaf as it is ejected by the zo discharge-arms of the binder, being assisted in the formation of the knot ina single complete revolution by the action of the holder, which is caused to carry the end strands around part way to meet the jaws before they z 5 complete their revolution, and thus enable them to accurately grasp the strands, and more particularly to improvements in the tying and holding head and the method of operating its parts.

In the drawings, Figure 1 is a rear elevation of so much of a grain-binder embodying said invention as is necessary to an understanding thereof; Fig. 2, an elevation from the stubble side with the breast-plate partly broken away; Fig. 3, an elevation from the front of the tyer-frame with knotter and holder mounted therein, showing also the bevel-pinions by which they are driven and a portion of the breast-plate; Fig. 4, an elevation from the inner or grain side with tyercam and breast-plate in vertical section; Fig. 5, a top plan view of the breast-plate, all other parts being removed; Fig. 4(i, an enlarged View of the knetter-head and tyer-cam partly in vertical section; Fig. 7, an enlarged detail of the breast-plate seen from the stubble side and in section to explain the shape of the cord stop or nger that obstructs the slot through said breast-plate; Fig. 8, an enlarged 5o detail of the holder-disk and cord-knife seen from above, the holder-spindle being in transof the holder-shoe, the first representing it as by its spring and the second as entirely detached; Fig. 11, an enlarged detail, in elevation, of the holder-disk and knife with the adjacent parts of the stock or tyer-frame, but omitting the holder-shoe 5 and Fig. 12, a section through said stock and its spindles and through the holder-shoe in its proper relative position, as indicated by the correspondinglynumbered line's in the precedin ligure. Figs. 13, 14, and 15 are a diagrammatic series embracing the tying-bill and its springcam, the holder, and adjacent portions of the breastplate, but with the tyer-frame and the operating-spindles in horizontal section, and all parts above removed to represent the successive stages of operation in forming the knot.

A represents the binder-arm shaft, and A the vibrating needle or binder-arm actuated thereby. B is the decking or grain-chute through which said binder-arm'plays, and C is the overhead breast plate provided with pendent ribs c on either side of the longitudinal slot through which the binder-arm passes to reach the tying-bill and holder. This slot has heretofore been made of somewhat irregular outline, so as to afford an oblique finger D, setting from one side of said slot beneath the knetter in its revolution into a recess d at the other side and serving to deflect the cord and guide it more perfectly over the knotting-jaws. Such recess has been closed at its bottom by a web d', connecting it With the rib at that side, and thus underlying the point of the linger, so that the knotter in its revolution may be obliged to bend the cord into said recess as it carries it past the end of the finger, and so that the cord cannot accidentally escape until thus forcibly bent by the revolution of the knotting-jaws; but herein it is proposed to add to this linger near its base or the point from which it begins its projection from the side of the cordslot and at the inner edge a boss or stud d2, curving downward toward the point or end of the finger, which itself at the end is curved slightly upward, so that the cord-strands may verse section; Figs. 9 and 10, enlarged detailsA attached to the stock or tyer-f ra me and pressed IOO ' iirst be deliected by said boss toward and perhaps past the center of the cord-slot, and

so more perfectly brought over the chin of the tying-bill, and may then restin the pocket thus formed by the inside edge of the finger until the tying-bill commences its revolution.

E is the tyer-frame, consisting of an upright post or bracket E', bolted at its foot to the breast-plate and supported above by means ot' a sleeve E2 upon the tyer-shaft, and except in some slight degree details not differing materially from the frame heretofore used. A bearing G, afforded by the tyerframe or bracket, receives the tyer-spindle ll radially to the tyer-shaft, or substantially so, and having at its head a bevel-pinion 7L, with a delay-shoe 7L', which respectively engage with a segment-rack c' and delay-liange t" on the face of the tyer-cam l, whereby the tyer-spindle is given one revolution and stopped with the tying-jaws pointing outward in the direction of the extended slot on the stubble side of the stop-finger in the breastplate, which slot at this side of the finger is somewhat oblique, returning toward the base of said iinger and outwardly at the same time, whereby said jaws when at rest will be themselves somewhat oblique, so that the cord stretched between the holder and the finger may pass over their chin, as represented in Fig. 13.

The tying-bill itself does not or need not differ from those heretofore used, consisting, essentially, of a rigid jaw or crown 7a, integral with the spindle, and a second jaw k', pivoted thereto and having a heel-extension provided with an anti-friction roller 7a2, engaged by a springcam K, whereby this jaw is forcibly closed just before the tying-bill ceasesits revolution and, is thereafter keptclosed until a fresh revolution is commenced and d uriug the incipient sta-ges of such revolution. Astrong platespring L, resting at its upperend against a lugZ from the tyer-frame, and between such lug and its lower end receiving an adjustingscrew Z', whereby its stress may be increased or diminished. carries at said lower end the cam whereby the movable jaw of the tyingbill is closed, and a lugZ2 from the tyer-frame, taking into a slot Z3 in said cam, prevents it from being carried laterally by the force eX- erted in the revolution of the knotter.

Outside of the tyer-spindle is the holderspindle M having a suitable bearing in the knetter frame or stock and set radially to the tyer-shaft, thereby being oblique to the tyer spindle, but at the same time `in about the same vertical plane, parallel with the face of the tyer-cam. At its head the holder-spindle receives a bevel-pinion in, anda delay-shoe in', which respectively engage with a short segment-rack m2 and delay-flange m3 on the face ot' the tyer-cam, the rack being in the present instance of sufficient length to give the spindle one-half of a complete revolution and then cause it to be stopped by the delayflange until the next knotting operation, but of course depending as to its length upon the number of notches in the holder-disk. The holder-disk employed is of a shape that has come to be styled the crow11-disk-that is, it has an npturned annular flange n, at or adjacent to its periphery, notched at suitable intervals for the reception of the cord, herein having four about equidistant notches, which agree with its semi-revolution for each binding operation. These notches are not cut completely to the bottom of the ange, but only part way, and while they may be cupped or rounded they are preferably undercut at their rear edge or that which acts against the cord, so that the latter may not escape from them. At its exterior the liange has vertical corrugations nx, and at one side adjacent to the tying-bill, or in such relation thereto as will be best understood by reference to the last three figures or diagrammatic series, is pressed against by a shoe N, pivoted at n to the tyer frame or stock and controlled as to its pressure by means of an adjusting-screw n2, passing through it and entering said stock, and by a coiled spring n3, interposed between its shank and the head of said shoe. The holder-disk carries two knives o o', diametrically opposite each other, projecting upward from aplate Q of hardened metal secured to the bottom of the holder-disk by slots and set-screws 02, so as to be adjustable. These knives are so arranged that each of them runs a little behind an adjacent notch in the disk, and they are set so far out from the upturned flange of this disk that they pass outside of IOO the holder-shoe in the revolution of the knotter.

Now in operation, the parts being in proper relative position, (indicated in Fig. 13,) with the holding-strand clamped between the eX- terior of the crown-disk and the opposing face of the shoe, thence belayed through the first notch in crown-disk just beyond said shoe and back past the tooth immediately to the real-,thence through the second notch and slightly clamped again by the holder-shoe, as shown, then obliquely over the chin of the tyingbill,. past its chin, down across the stoplnger, through the cord-slotin the breastplate, and through the eye of the needle, the latter rises, brin ging the new strand u p, laying it over the stop-finger and slightly over the chin of the tying-bill, but in direct line with the cord-slot, and thus not parallel with the iirst strand, which has been carried away from that line toward the tyer-spindle in the previous operation to reach the position just explained. The new strand now is held by the needle almost directly over, but slightly in advance of, the third and fourth notches in the holder, and the tying-bill starts, catching the cords and carrying them in the first half of its turn over the end of the stop-tinger, as shown in Fig. 14, thus looping them. Almost immediately following the incipient movement of the tyingbill the holder-disk also starts, and the strand from the needle drops into the third notch, and also it may IIO be into the fourth notch, while the old strand is released from the primary grasp of the shoe in rear of the first notch, still remaining grasped between the shoe and the liange in rear of the second notch, with a constantlyincreasing grip, yet weaker than the iirst grip when it was held at two points. Thus during the first part of the revolution of the knetter when slack is demanded this strand, being released at the primary point of holding, is allowed to slip through the holder as drawn upon by the knetter; but during the latter part of the revolution of said knetter when no slack is demanded the grip increases, so as to hold the strand practically rigid. Meanwhile the revolution of t-he tying-bill gradually belays the strand between the eye of the needle and the holderaround the tooth between the third and fourth notches ot' the holder-disk, therefore increasing the tension and preventing this strand, which at first pulled freely from the needle, restra-ined only by the primary tension on the cord, from running out with merely the same resistance when the coming around of the tying-bill in the last half of its revolution makes slack no longer necessary; or, in other words, the tension of the strand from the needle is 1increased by the action of the crown-disk as a secondary tension concurrently with the increasing grip upon the old strand as the knetter passes the first half of its revolution. Finally, when the tying-bill approaches the end of its revolution the needle-strand has been carried past the shoe, as shown in the fifteenth figure, bringing it alongside the old strand and bending it over the edge of said shoe, and also bringing itup against the spindle-that is, it has been moved from the position in which it originally laid to the position occupied by the old strand between the holder and the tyingbill, and, together with the old strand, has entered or enters just before the termination of the revolution of the tying-bill between the jaws of the latter, which thereupon close, when the continued revolution of the holderdisk carries the knife on that side against the two strands, severing them, and the sheaf is ready to be ejected. Finally, the holderdisk reaches the position shown inthe thirteenth figure, comes to a stop, having made a half of a revolution, brought the second knife into the position originally occupied by the first, and grasped the new strand, now itself becoming the old strand, with a primary and a secondary grip ready for the next action.

I claiml. rlhe combination, substantially as hereinbefore set forth, with the tying bill and a suit-able holder, of an oblique rigid stop-finger setting out from one side of the ccrd-slot toward the other, and along and over the end of which the tying-bill carries the cord strands as it turns, and an upstanding boss or deiiector located at the base and inside edge of said step-finger.

2. rlhe combination, substantially as hereinbefore set forth, with the tying-bill and mechanism for giving it a single rot-ation and stopping it with its jaws trending outwardly in the direction of the extended cord-slot, of a holder arranged to carry the cord strands around to meet the tying-bill in its revolution, a stop-finger in the cord-slot, along and over the end of which the tying-bill carries said strands as it turns, and an upstanding boss or defleetor located at the inside edge of said stop-finger.

3. The combination, substantially as hereinbefore set forth, with the tying-bill and binder-arm, of atension device arranged and timed, practically as described, to act upon the spool-strand independently of the old strand between the eye of the binder-arm and the tying-jaws toward the close of the revolution of the latter and before said strand enters beneath the holder-shoe.

4. The combination, substantially as hereinbefore set forth, with the tying -bill and binder-arm, of a crown disk-holder arranged to receive the strand from the binder-arm in two of its notches, whereby said strand is belayed over the finger between said notches in the revolution of the holder-disk to apply tension thereon between the point of the binderarm and the tying-bill after the latter ceases to demand slack.

5. The combination, substantially as hereinbefore set forth, with the tying-bill, of a crown disk-holder having tour notches, a shoe pressing upon the exterior of said holder adjacent to the tying-bill, and a binder-arm arranged to lay its strand in two of said notches in advance of the shoe, whereby they are be,- layed upon the tooth between concurrently with the increase of grasp upon the old strand as the tying-bill ceases to demand slack.

The combination, substantially as hereinbefore set forth, of the tying-bill, its spindle, the pinion and delay-shoe upon said spindle, the segment-rack and delay-iange upon the tyer-eam, arranged to impart a sin gle revolution to the tying-bill and stop it with its jaws trending outwardly, the crown holderdisk and its spindle, the pinion and delay-shoe upon said spindle, the segment-rack and delay-ange upon the tyer-eam arranged to rotate said disk, the shoe pressing upon the exterior ot' said disk, and a knife or knives carried by said disk and passing outside of the shoe.

7. The combination, substantially as hereinbefore set forth, of the tying-bill, its spindle, pinion, and delay-shoe, the segment-rack and delay-fiange upon the tyer-cam, adapted to impart a single revolution to the tying-bill and stop it with its jaws trending outwardly, the four-notched crown disk-holder and its spindle, the pinion and delay-shoe upon said spindle, the segment-rack and delay-Hange upon the tyer-cam proportioned to impart a half-revolution to the holder-disk, the shoe IOO IIO

pressing` upon the exterior of the holder-disk, primary grasp released, so that said strand 1o and the two knives carried by said disk and may pull through as slack is demanded in the arranged to pass outside of theshoe. rst part of the revolution of the tying-bill 8. The crown holder disk having four and the grasp increased in the latter half. notches, combined with a shoe pressing upon the exterior of its flange, and mechanism HENRY E. PRIDMORE. which gives it a half-rotation for each bind- Witnesses:

ing operation, whereby a primary and second- E. K. BUTLER,

ary grasp are taken upon the strand and the PAUL ARNOLD. 

